4pc Extended Magnetic Nut Driver Set

Our Montana Brand Magnetic Nut Drivers are engineered and manufactured for quality and durability.  

Part Number - MB 66144

Product Features & Benefits:

• Designed and engineered to insure accurate specifications and superior quality
• Manufactured utilizing premium shock resistant S2 steel to reduce stress fractures and accessory failure
• Proprietary, task specific heat treatment to control hardness for superior strength
• Engineered and machined to prevent slipping and stripping
• Extra-strong neodymium magnet for fastener and nut retention
• High resistance to abrasion for extended life and performance
• Precision machined shank geometry for improved impact driver and quick change chuck fitment
• Made in the USA

Sizes Included:

1/4", 5/16", 3/8", 7/16"